Soils might be categorised as Sort A, Style B, or Sort C. Kind A soil is considered the most stable soil where to excavate. Kind C would be the least secure soil. It is important to keep in mind that a trench could be Reduce via more than one variety https://holdencnxpy.ampblogs.com/the-smart-trick-of-soil-investigation-services-bangladesh-that-no-one-is-discussing-68489911